2 a2-engraver.cc -- implement A2_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2001 Jan Nieuwenhuizen <janneke@gnu.org>
11 #include "note-head.hh"
14 #include "translator-group.hh"
15 #include "side-position-interface.hh"
16 #include "directional-element-interface.hh"
19 class A2_engraver : public Engraver
23 VIRTUAL_COPY_CONS (Translator);
25 virtual void acknowledge_grob (Grob_info);
26 virtual void create_grobs ();
27 virtual void stop_translation_timestep ();
30 enum State { SOLO, SPLIT_INTERVAL, UNIRHYTHM, UNISILENCE, UNISON } state_;
33 ADD_THIS_TRANSLATOR (A2_engraver);
35 A2_engraver::A2_engraver ()
42 A2_engraver::create_grobs ()
44 if (!to_boolean (get_property ("combineParts")))
48 SCM unison = get_property ("unison");
49 SCM solo = get_property ("solo");
50 SCM solo_adue = get_property ("soloADue");
52 if (solo_adue == SCM_BOOL_T
53 && ((solo == SCM_BOOL_T && state_ != SOLO)
54 || (unison == SCM_BOOL_T && state_ != UNISON
55 && daddy_trans_l_->id_str_.left_str (3) == "one")))
57 text_p_ = new Item (get_property ("TextScript"));
58 Side_position_interface::set_axis (text_p_, Y_AXIS);
59 announce_grob (text_p_, 0);
63 if (solo == SCM_BOOL_T)
66 if (daddy_trans_l_->id_str_.left_str (3) == "one")
68 text = get_property ("soloText");
72 text = get_property ("soloIIText");
76 else if (unison == SCM_BOOL_T)
79 if (daddy_trans_l_->id_str_.left_str (3) == "one")
80 text = get_property ("aDueText");
83 Side_position_interface::set_direction (text_p_, dir);
84 text_p_->set_grob_property ("text", text);
90 A2_engraver::acknowledge_grob (Grob_info i)
92 if (!to_boolean (get_property ("combineParts")))
97 if (Note_head::has_interface (i.elem_l_))
100 Side_position_interface::add_support (t, i.elem_l_);
101 if (Side_position_interface::get_axis (t) == X_AXIS
102 && !t->parent_l (Y_AXIS))
103 t->set_parent (i.elem_l_, Y_AXIS);
105 if (Stem::has_interface (i.elem_l_))
107 Side_position_interface::add_support (text_p_, i.elem_l_);
111 SCM unisilence = get_property ("unisilence");
112 SCM unison = get_property ("unison");
113 SCM unirhythm = get_property ("unirhythm");
114 SCM solo = get_property ("solo");
115 SCM split_interval = get_property ("split-interval");
116 SCM solo_adue = get_property ("soloADue");
118 State previous_state = state_;
119 if (unisilence == SCM_BOOL_T)
124 else if (solo == SCM_BOOL_T)
126 else if (unison == SCM_BOOL_T)
128 else if (unirhythm == SCM_BOOL_T && split_interval == SCM_BOOL_T)
129 state_ = SPLIT_INTERVAL;
133 /* Must only set direction for VoiceCombines, not for StaffCombines:
134 we can't detect that here, so, ugh, yet another property */
135 if (!to_boolean (get_property ("noDirection"))
136 && (Stem::has_interface (i.elem_l_)
137 || Slur::has_interface (i.elem_l_)
138 // || Tie::has_interface (i.elem_l_)
139 || i.elem_l_->has_interface (ly_symbol2scm ("tie-interface"))
142 Usually, dynamics are removed by *_devnull_engravers for the
143 second voice. On the one hand, we don't want all dynamics for
144 the first voice to be placed above the staff. On the other
145 hand, colliding of scripts may be worse.
146 So, we don't set directions for these when we're playing solo.
148 || (i.elem_l_->has_interface (ly_symbol2scm ("dynamic-interface"))
150 || (i.elem_l_->has_interface (ly_symbol2scm ("text-interface"))
155 Hmm. We must set dir when solo, in order to get
156 the rests collided to the right position
158 if ((unirhythm != SCM_BOOL_T) || (solo == SCM_BOOL_T)
159 || ((unisilence == SCM_BOOL_T && previous_state != UNISON))
160 || (unirhythm == SCM_BOOL_T && split_interval == SCM_BOOL_T
161 && (unison != SCM_BOOL_T || solo_adue != SCM_BOOL_T)))
163 if (daddy_trans_l_->id_str_.left_str (3) == "one")
165 i.elem_l_->set_grob_property ("direction", gh_int2scm (1));
167 else if (daddy_trans_l_->id_str_.left_str (3) == "two")
169 i.elem_l_->set_grob_property ("direction", gh_int2scm (-1));
176 A2_engraver::stop_translation_timestep ()
180 Side_position_interface::add_staff_support (text_p_);
181 typeset_grob (text_p_);